Resume of Walt Davis
PO Box 441, Aumsville Or, 97325
C: 503-428-2900 E: Walt.L.Davis@waltdavis.net
Software Engineer &
Walt Davis is an
accomplished Information Technology professional with a
demonstrated success in the design and implementation of
innovative, complex systems/software architectures and IT
- Over 20 years of diverse and unique experience encompassing
multiple areas of technology including systems architecture
design, software development, web development and network
- Expert knowledge of object-oriented analysis/design,
object-oriented development methodologies, distributed
applications, framework/application development, and advanced
- Solid understanding of network engineering principles, network
architectures, systems administration, network appliances,
Internet/Extranet, wireless networks, and systems security.
- Extensive experience in Research & Development, Startup
Companies, New Product Development, Strategic & Tactical
Planning, Project Management, and Consulting.
- Proven ability to build, lead and motivate high performance engineering and development teams.
Dedicated to producing a healthy, team-oriented
environment to achieve maximized productivity.
- Fluently communicates complicated technology concepts to
technical and non-technical professionals, recognized for
gaining support from venture capital firms and business
- Track record for building scalable system architectures using
emerging technologies to introduce new systems and products
that improve business functions, reduced costs, and ensure a
Oregon Department of Human Services
May 2003 - Present
State of Oregon Enterprise Architect for the DHS (Department of
Human Services). Web based applications and distributed systems
for public health and other departments.
Reference architecture - designing enterprise level distributed
systems/applications, section/layered software structure, highly
cohesive and loosely coupled sections, clear boundaries between
logic types (BA, Security, Persistence, Presentation, Messaging
...), principals of object-oriented design/analysis, SOA, and RDD
Staff architect for Architecture Review Board (ARB)
NEDSS (National Electronic Disease Surveillance System)
eSentinal an early warning disease detection
system for SARS, unexplained death, and other conditions
Internet accessible application for death scene investigations
Security, Identity Management, Provisioning, Directory Services,
role-based authroization, single-sign-on, portal application
launcher, forward/reverse proxying
IBM WebSphere, Java, LDAP, DB2, J2EE
Other DHS applications and systems: SACWIS, CRIMS, ICM, ICS, HAN,
Immunization, Application Portal Framework, MMIS, SDC ....
2000 – May 2003
Led design of systems architecture through all
phases of product development for clientless VPN product. Oversaw
engineering team for construction of systems architecture.
Coordinated with COO, Marketing, VP of Engineering, and
well-documented architecture that reflected actual systems
construction and provided next generation extranet product.
Completed design within
time and functional requirements, delivering a
flexible and scalable system that enabled Flatrock to pursue
several different markets.
distributed, object-oriented architecture that allowed
multiple teams to develop different sections without need to
communicate between teams.
Established clean architecture that enabled technical
staff to rapidly isolate and resolve system issues.
technical team to evangelize and defend new technology
to Venture Capitalists, which served as critical
phase for obtaining second round
as first employee and successfully led initiatives from
conception to delivery including several subsequent product
releases and system enhancements.
on subsystem roles and core models, conceived and matured the
Model Centric methodology to software architecture of
April 1999 – Aug 2000
software focused on creating dynamic content that supported
business initiatives to provide professional health care web
portals for consumers.
Designed Internet health care information systems using
Developed software to retrieve data from various locations,
transform information and load data into live websites.
Created and maintained back end content distribution
software for MSN, Excite, Lycos, CVS and WebMD.
and developed the Excite portal to provide a co-branded image
for users of the Excite search engine.
Completed project within critical deadline for launch
of the Healtheon merger.
medcast slurp that served as main data
relocation/transformation program (80%), originally developed
and abandoned by contractor.
Resolved major problem with constant production machine
Met challenge of re-factoring complicated code that
enabled current staff to maintain system.
and followed through with development of Swing-based IDE for
developing websites on the WebMD platform.
1997 – April 1999
to head product development for startup organization that
specialized in object-oriented distributed systems and expert
Coordinated with CEO and partner companies to define new
products, conduct research, and develop new technologies.
Provided support to contracting and consulting branch of
company to incorporate ideas into production.
Design – Built prototype of custom expert system for
Transportation Company, which enabled experts to enter domain
knowledge regarding truck design and order process to
custom order meets predetermined specifications.
an MVC and Swing based interface.
Works – Designed experimental tool combining expert system
and OO technology into single development tool to model and
Developed unique system to enabled domain experts to
build objects and model rules from remote locations, interacting
through shared interfaces.
Used a Swing based
interface with custom MVC components.
Distributed Business Objects – Created framework that
allowed developers to create application models for Java
implementation while remaining independent of technologies.
Created model to enable developers to use a generator
to choose persistence, distribution and other technologies to
create deployment code, which supported SQL-based persistence,
RMI and EJB code generations.
Modeling Language – Contributed to development of
methodology based on UML for support of knowledge modeling,
which extended the UML Meta-Model to support KML
and build GUI front ends
to model objects in KML. Prototype
used a Swing based interface with custom swing components.
Valley Insurance Group
1995 – Feb 1997
object-oriented software to prototype major insurance system
focused on processing commercial lines insurance.
Performed maintenance and integration with legacy AS/400
Designed software in Visual Age Smalltalk using 3-tier
architecture driven by use-cases.
insurance ID card program written in COBOL using
object-oriented principals, proving the concept of
implementing object-oriented decomposition in a procedural
pilot project on Smalltalk and IBM Visual Age development
platform. Evaluated technologies for developing application
and identified outsourcing partner.
Successful pilot led to full-scale project to develop
new commercial lines system from ground up.
as lead Smalltalk
to building new commercial lines application.
Coordinated with expert Smalltalk consultants using
OOAD techniques to create functional prototype system
Test Eng/Tech Support Rep
1992 – Jun1994
Performed software testing for calculator/handheld
products group. Created
testing plans and automated test scripts for handheld products.
Provided technical support to users on the functionality of
calculator and other handheld products.
as project team member for beta testing of the HP48GX
matrix functionality of the unit.
Identified and resolved more bugs then all other team
members combined through utilization of automated testing
testing script to operate in 24x7 environment, which logged
test results to computer.
Utilized scripts to check logs daily and submit to
development team for resolution.
From Above Solutions
Information Technology Consultant
May 2002 – 2005
consulting with clients to design IT infrastructures, develop
object-oriented technologies, create advanced software
architectures and implement wireless network systems.
Managed consulting engagements, business development and
Assist in development of Venture Capital funding and
Built and managed engineering teams.
– Configured and tested equipment for messaging wireless
network to provide broadband services for the city of
Aumsville, OR, enabling client to delivery service prior to
Currently implementing point-to-multi-point wireless
network to provide long-range services.
– Developed architectural foundation for new hybrid VoIP/TDM
line of products.
Worked with Venture Capital firms to help generate
first round funding.
– Provided expertise on design
of server hardware/software including migration of
Linux based technologies to improve entire infrastructure and
resolve multiple technical problems.
– Website development, network design & setup, and
1999 - Present
manage non-profit company that provides IT solutions to other
Provide domain hosting, web, hosting, email services, web
development, network design/implementation, network cabling and
customer service builds.
Oversee systems administration, upgrades and intrusion
Resolve network and connectivity issues.
Maintain all servers, networks and Internet services.
and developed company that provides valuable services to 5
different non-profit companies.
and implemented 3-segment networking including the Internet,
Intranet and DMZ with web hosting and mail services.
all services with Linux and open source technologies.
dedicated server room including rack mount servers, DNS, web,
firewall, content filtering, proxy, MySQL, CVS, SSH, file
server, IDS, and intrusion detection software.
involvement in the open source community and projects.
– Deployment of Asterisk for small to medium sized PBX
solutions. Contributed to creation of Asterisk documentation
and conducted testing.
– Deployment of IPCop for enterprise level firewall
solutions. Documented solution for placing DNS servers within
the DMZ for both external and internal access.
C/C++, OOAD, UML, OCL, SmallTalk, AWT, MVC, Swing, RMI,
RUP, RDD, LDAP, Application Servers.
Sybase, Access, DB2, MySQL,
Case Tools, Defect Tracking Tools, GUI Tools, Envy, CVS,
Keystone, Dans Guardian, IPCop, Squid, Snort, Postfix,
Apache, Freeswan, OpenLDAP, eDirecotry, iPlanet, WebSphere.
Linux, AS/400, Windows (NT, 2000), Windows (95,98, ME, XP)
LAN/WAN, TCP/IP, Ethernet, VPN, SMTP, POP3, SSH, SSL,
IPTables, Vtun, IPSec, PPTP, Domain, HTTP, Hubs, Switches,
Network Cabling, WWW, WebMail, Wireless Broadband.
VINA T1 Integrator, VoIP (sip & h323), ATA 186, Adtran
750 Channel Bank, Small Office PBX, and Voicemail system.
Institute of Technology, Klamath Falls, Oregon
of Science in Software Engineering
Practicing member of
Wide Institute of Software
||The Open Group Architecture Framework (TOGAF)
version 8 certified
|International Association of Software Architects